Well-pumping apparatus.



G. A. HARPER.

WELL PUMPING APPARATUS.

APPLICATION FILED FEB. 18. 1915.

Patented Aug. 17, 1915.

GEORGE A- HHRPER axi/Imam:

W d/J/w u mw COLUMBIA PuNwhAPl-I C OHWASHINOTON. D.c;

UNlTE srA'rEs ra'rn'r mo GEORGE A. HARrER, OF 011. CITY, PENNSYLVANIA.

WELL-PUMPING APPARATUS.

. apparatus or rigs and relates particularly to that class of pumping'jacks for oil and otherwells wherein a pivoted bell crank lever is operatively connected at one end to the polish or pump rod and at the other end with an engine or motor-for the purpose of working the pump mechanism.

To those familiar with the art to which this invention appertains', it is well known that difficulties have been experienced in the use of the ordinary sills or beams between and on which the bell crank'lever or jack is fulcrumed, owing to the fact that either one or both of 'the beams or sills will have a tendency to become more or less displaced in the operation of the rig, whereby'the desired direct line of pull of the operating rod leading to the engine or motor Will be destroyed'bythe skewing of the jack support, with the result that the sidewise or lateral strains thus imposed on the jack and its bearings will' soon" overcome the stability thereof and partially or completely wreck the pumping mechanism.

With a knowledge of these conditions, my invention has for its primary, objecta simple, durable, and eflicient construction of support for the jack, said support being capable of adjustment whereby it may be properly lined up, as required, and thus maintain the plane of movement of the jack coincident with the plane of movement of the jack operating rod. That is to say, the

parts are so constructed and arranged that the support maybe easily adjusted whenever'required so that aline drawn through the polish or pump rod and through the plane of movement ofthe operating rod will also pass directly through the plane of movement of the jack itself. Hence all liability of wrecking the rig by faulty alinement is positively precluded.

The invention has for its further object an improved construction and arrangement of parts an apparatus of thisJkind; in-

Specifieation of Letters Eatent. Patented Aug. 17, 1915i Application filed February 18, 1915. Serial No. 9,116. i I

eluding laterally and independently adjustable blocks between which the jack or hell crank lever is fulcrumed, whereby it is not only possible to shift the position of the jack itself, as required to properly aline the same, but by separating the blocks more or less the support can be used .withjacks of varying thickness. And the invention also aims to generally improve devices of this class so as to render them more useful and commercially desirable.

tions of the parts that I shall hereinafter more fully describe and claim.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawing, in which,

Figure 1 is a side elevation of a portion of a pumping rig embodying the improvements of my invention, a number of the parts being shown conventionally and for the purposes of illustration. with parts in section and other parts broken away. Fig. 3 is a detail transverse sectional view, the section being taken on the line 33 of Fig. 2. Fig. 4 is a bottom plan view of the base for the blocks between which the jack is journaled or fulcrumed. Fig. 5 is a transverse sectional view through the beam and a portion of the jack, showing a strut or link member operatively connecting the beam and jack together.

Corresponding and like parts are referred to in the following description and designated in all of the views of the accompanying drawing by like referencecharacters.

Referring to the drawing, the numeral 1 designates a well platform, 2 a conductor, 3 a'polish rod working within the casing, and

4 the pump jack, the latter being operatively connected to the beam 5 by a strut or link member 6, as shown, and the beam. be-

ing pivotally mounted near one end, as at 7, to swing in a vertical plane between 1 upwardly converging and obliquely disposed supporting rods 8 to which braces 9 are con nected.

10 designates an. adjuster carried by the beam 5 and through which the rod 11 passes,

saidrod being connected to the' polishxrod 3, and 12 designates the jack operating rod whichleads to. an-engine or motor or any other prime mover whereby a horizontal reciprocating movement will be imparted to the rod 12, a rocking movement imparted to the jack 4, and a swinging movement to the beam 5 so as toproperly operate the polish 7 rod 3. A All of the parts hereinbefore specified may be of any desired or conventional construction and design, andare here shown for the purposes of illustration only so that my invention embodied herein may be fully understood. V

The jack 4 is fulcrumed at its elbow on a transversely disposed rod or spindle 13 and is received between supporting blocks 14 mounted upon a base 15 which may be formed either as a casting or out of sheet metal or otherwise, as desired. The blocks 14' h'ave vertically disposed bolts 16 passing therethrough, said bolts being alsoreceived in transversely elongated slots 17 formed in the base 15, asbest illustrated in Figs. '3 and 4, and the base itself is preferably formed at each end with an arcuate slot 18, said last named slots receiving bolts 19 which are in the nature of set screws which extend down into the platform 1. It is to be understood that it is within the purview of my invention to dispense with the arcuate slots and bolts 19, and that the invention is not limited thereto in any respect.

Each of the blocks 14 is bored horizontally in a slightly oblique direction to receive two rearwardly diverging link rods 20 on which adjusting nuts 21 are screwed, and the forward ends of the rods 20 are pivotally connected to a collar 22 which encircles the conductor 2, as clearly illustrated in Figs. 1

and 2.

From the foregoing description in connection with the accompanying drawing, the operation of my improved jack support will be apparent. In the practical use of the device, whenever it is necessary to properly line up the jack, all the operator has to do is to screw up upon the required nuts 21 on the rods 20 to angularly shift the position of the base 15 and bring the entire jack support into such a position on the platform as to secure the correct alinement of the jack; or, if required, the blocks 14 themselves may be shifted laterally in one direction or the reverse upon the base 15 to secure therequired alinement. Furthermore, it will be understood that as these blocks 14 are independently movable or adjustable, they may be brought nearer to, or farther away, from each other in order to accommodate jacks of varying thicknesses or widths.

It will thus be seen that I have provided a very simple, durable and eificient construction of jack supporting apparatus for well rigs or pumpingmechanism by the use of which the jack may be at all times maintained in proper alinement, as set forth at the outset of the specification, and that the parts are few in number and of such a construction that they can be easily made and assembled and not liable to get out of order or require any especial attention. 7

Preferably, the bearing plates 23 for the spindle or shaft 13 are formed with upstanding lugs 24 to which the lower ends of the brace rods 9 are bolted or otherwise connected.

While the accompanying drawing illustrates what I believe to be the preferred embodiment of my invention, it is to be understoodthat the invention is not limited thereand base are mentioned separately, it is to be understood that this does not necessarily mean that the blocks are parts separate and distinct from the base and secured thereto, for they may be just as well formed therewith. Furthermore, I consider it to be within the scope of my invention to do entirely away with the base 15 as a separate element, particularly in those cases where it is notdesired to have the blocks disposed toward and from each other in order to accommodate the spaces therebetween for jacks or bell cranks of different widths.

What is claimed, is:

1. In a pumping mechanism of the character described, the combination with a conductor and a jack, of a support for the jack, said support including block's, rearwardly diverging rods passing through said blocks and operatively connected at their forward ends to the conductor, and nuts applied to the rods and bearing against the opposite 1i afies of the blocks, for the purpose speci- 2. In a well pumping apparatus of the character described, the combination with a conductor and a jack, of a collar encircling the conductor, rods connected at one end to said collar and extending over same in diverging relation to each other, blocks between which the jack is fulcrumed, the rods passing through said blocks, and means for adjusting the rods relative to the blocks.

3. In a well pumping apparatus of the character described, the combination with a conductor and a jack, of a collar encircling carried by said blocks, and a base on which the blocks are mounted, said base being formed with laterally elongated slots and the bolts being disposed in said slots.

4. In a Well pumping apparatus of the character described, the combination with a conductor and a jack, of a collar encircling the conductor, rods connectedto said collar and diverging therefrom, blocks between which the jack is fulcrumed, the rods passing through said blocks, means on the rods for adjusting the blocks on the same, bolts carried by said blocks, and a base on Which the blocks are mounted, said base being formed With laterally elongated slots and the bolts being disposed in said slots, said base being further formed near each end with an cuate slots and bolts embodied in said slots and adapted to be connected to the platform, as and for the purpose set forth.

In testimony whereof I hereunto afiix my signature in the resence of tWo Witnesses.

(EEORGE A. HARPER. Witnesses:

D. W. GALL, FREDERICK S. S'rrrr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

